Oil burning furnace construction



J. REID.

OIL BURNING FURNACE CONSTRUCTION.

APPLICATION FILED AUG.I4| I919.

1 322,313 Patented Nov. 18, 1919.

2 SHEETS-SHEET I.

J. REID.

01L BURNING FURNACE CONSTRUCTION.

APPLICATION FILED AUG-14.1919.

1,322,343. Patented NOV. 18, 1919.

2 SHEETS-SHEET 2.

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' UNITED STATES PATENT OFFICE.

JOHN REID, OF NEW YORK, N. Y.

OIL-BURNING-FURNACE CONSTRUCTION.

Application filed August 14, 1919.

To all whom it may concern:

Be it known that I, JOHN REID, a subject of the King of Great Britain, and residing at 30 Church street, in the city of New York, in the State of New York, in the United States of America, have invented a new and useful Oil-Burning-Furnace Construction, of which the following is the specification.

The invention relates to oil burning furnace front as described in the present specification and illustrated in the accompanying drawings that form part of the same.

The invention consistsessentially in the novel means employed, whereby the flow of air is so directed as to materially facilitate the combustion of the fuel gases and whereby the parts are arranged for ready installation and repair.

The objects of the invention are to conserve the fuel supply and at the same time obtain the maximum results at a minimum consumption of fuel; to insure a fair and even distribution of air in one or a plurality of furnaces arranged in a battery; to secure despatch in equipping. furnaces with fronts and eflect quick repairs and replacements; to so construct and arrange the parts as to standardize such pieces likely to be most affected by the conditions under which the frontsa-re used; and generally to provide a simple and efficient furnace front.

In the drawings, Figure 1. is a front elevation of the outer plate and mountings.

Fig. 2 is a front elevation of the back plate, showing the intermediate parts in section.

Fig. ,8 is a vertical sectional view of the furnace front.

Fig. 4 is a: perspective detail of the central passage casing.

Fig. 5 is a diagrammatic View, showing the source and direction of the heated air.

Like numerals of reference indicate corresponding parts in each figure.

Referring to the drawings, the front plate 1 is shown with the upper opening 2 at or about the center and the lower opening 3,

the former corresponding to the fuel opening and the latter to the ash opening in a coal burning furnace front.

The opening 2 is closed by the plates 4 and 5, which are joined by the hinges 6. The upper plate 4: is secured by the bolts 7 in suitable slots and the lower plate 5 is secured by the bolts 8. In the upper plate 4:

Specification of Letters Patent;

Patented Nov. 18, 1919.

Serial No. 317,537.

an aperture is stopped by the pivotally hung closure 9. 1

The lower opening 3 is closed by the hinged door 10 locked by the lever handle 11, the said opening 3 affording access to the space between the front plate 1 and back plate 12;

The back plate 12 has a circular central opening 13, but is closed therebelow and above and has also the radial reinforcing ribs 14.

The upper and lower air compartments 15 and 16 respectively between the plates 1 and 12 are formed by the upper wall 17 eX- tending part way across the plates and above the opening 13 and curved downwardly at each end terminating inthe valve seats 18, and the flare 19 following the shape of the lower portion of the back plate 12 and terminating in the flanges 20 and valve seats 21. Both flare and upper air wall are preferably integral with back and front plates, though not necessarily so, still as a general rule they would form part of the same casting. The upper air compartment is preferably divided centrally by the deflecting di- The lower c0mpartment'16 is preferably.

divided by the central deflecting division plates 16 and 16 the plate 16 being permanent with flare and back plate and the plate 16 being secured to the door 10, each plate having suitable meeting edges.

This deflects the air reaching the lower compartment upwardly into the interior of the inner central air wall.

The valves 22 are pivotally mounted and close to the seats 18 and 21 and stop the ports 23 and 24, which form the air inlets for the compartments 15 and 16. I

The deflecting plates 25 and 26 of substantially crescent shape in cross section are rigidly secured to or form part with the plates 1 and 12 and extend outwardly and downwardly at either side of the central opening 13 into proximity of the pivotal tral opening 13. The upper portion of the wall 27 extends to the front flange 29 and the bottom 29 slopes upwardly from the rear flange 28 to the straight edge 30 of the flange 29. The bottom 29 is for the most part open forming an air port'81 While in the top portion are the air ports 32.

The usual practice is to combine three or more furnaces in one installation and in marine work the furnaces are grouped as shown in Fig. 5, the central furnace 33 being between the wing furnaces 34. and 35.

In order to insure an even and fair distribution of air, which is so much more essential in oil burning to secure satisfactory combustion, 'the heater chambers are preferably separate and individual to each furnace and front. The air flows down the passages 36, 37, 38 and 39, thereby equalizing the flow of air throughout the battery of furnaces.

In the operation of this invention, the skeleton frame of the front in the first .place preferably comprises the front and back plates, the upper air compartment wall, the lower flare, and deflecting walls. To these are attached the lower door on the front plate and the closure plates to thecentral opening. The oil burner and accompanyingparts of an oil fuel equipment are supported from the feed pipe projecting through the plate closure and these are all within the inner air wall, which thus becomes the burner casing. The latter is inserted from the back and rigidly secured by bolts, though readily removable for accessibility to the parts.

Theair entering from the individual or other heaters as explained is deflected and therefore spreads to the upper and lower compartments, where it is again deflected with the result that the proportions of air are equally distributed throughout the whole oil vapor zone and become equally laden for burning, which guarantees better combustion and consequently greater heat and superior steaming qualities.

The individual heater chambers are shown as the most effective form of construction to bring out the best properties of the air pockets in the front, however many forms of heaters may be used with good results either the single type of draft air heater or other types.

Various changes may be made in the construction without departing from the spirit of the invention, andso long as they are within the scope of the claims for novelty following, the protection accorded shall not be invalidated.

What I claim is 1. In oil burning furnace construction, a

frame formed of front and back plates and upper and lower spacing and connecting walls separated by air ports, deflecting plates at or near said ports, valves closing said ports, an oil burner and an inner air wall having suitable ports for feeding said burner.

2. In oil burning furnace construction, a frame formed of front and back plates and upper and lower spacing and connecting a lower straight edge resting-on the front plate, said wall at top and bottom having air ports, closure plates hinged together and secured to the front plate and closing in said inner air wall, a lower door closing an opening in said front plate and an oil burner having a feed pipe projecting from said closure plate.

4. In oil burning furnace construction, a plurality of furnace fronts having front and back plates and air compartments therebetween, valves closing ports to said compartments, inner air walls having distributing ports and heater chambers individual to each furnace and discharging to passages leading to the several furnaces.

5. In oil burning furnace construction, a battery of furnaces formed of central and wing furnaces, an air heater chamber for each furnace having passages approximately dividing the air equally between the furnaces, a front for each furnace having front and back plates and air compartments therebetween connected with said passages, valves in said fronts, deflecting plates distributing the air from said heaters and oil burners in said fronts.

6. In oil burning furnace construction, a furnace front formed of front and back plates and spacing and connecting walls forming an air pocket, having air ports thereinto from the sides, valves closing said ports, deflecting plates inside said ports, deflecting plates vertically arranged at the upper and lower ends, a burner, an inner central air wall surrounding said burner having upper and lower ports and means for feeding air under pressure to said pocket.

Signed at the city of New York this 2nd day of Aug. 1919.

JOHN REID. 

